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Questions in physics
📝 Answered - 1. Sometimes in very cold places, water pipes burst. Explain why this happens.
📝 Answered - **How does a television signal differ from a standard radio wave?**
📝 Answered - What will be the effect on the loudness of sound if the amplitude is doubled or halved?
📝 Answered - A railway train 50 m long passes over a bridge 250 m long at the rate of 12 km/h. How long will it take to completely pass over the bridge?
📝 Answered - A man travels 10 km to the east and then 20 km to the north. Find the distance moved and the displacement.
📝 Answered - A charge of 90 C passes through a wire in 1 hour 15 minutes. What is the current in the wire?
📝 Answered - What is the difference between a kilowatt and a kilowatt-hour?
📝 Answered - If a wave has a frequency of 8 Hz, what is its period?
📝 Answered - How far does light travel in 1 millisecond, that is, in one thousandth of a second?
📝 Answered - An automobile engine exerts a force of 595 N to propel the car at 90.0 km/h on a level road. What is the power output of the engine at that time?
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